The Heraeus Conductive Polymers Division is pleased to announce it will spotlight highly conductive Clevios(TM) PEDOT:PSS coating layer materials together with optimized etching and masking agents for patterning of touch screens at the Display Taiwan exhibition.
Heraeus has, with its development partners, successfully created and demonstrated sample projected capacitive touch screen devices based on its new Clevios(TM) transparent conductive materials portfolio at trade trials and conferences across North America, Europe and Asia. Highly conductive formulations such as Clevios(TM) F ET (PDF download) with 200 Ohm/sq. resistivity are typically coated on to PET films. Coatings with high levels of uniformity at a thickness of < 1 micron have been produced. These properties meet the demand specifications of today"s touch screen producers.
The invisible patterning process utilizes Heraeus component technologies. A uniform layer of high-conductive Clevios(TM) F ET is first coated on to a substrate, for example a PET-foil. A pattern, using Clevios(TM) SET S – a masking polymer, is then screen printed onto the conductive polymer layer. Clevios(TM) Etch is applied to create the non-conductive areas without altering the layer”s optical properties. After the process is completed, the masking polymer that protected the conductive pattern is removed. The resultant conductive and non-conductive areas on the substrate are sharply defined but not visible.
Emily Shu, Sales Manager for the Heraeus Conductive Polymers Division on the subject of ITO-free touch screens added “The combination of Clevios PEDOT formulations with etching agents generates invisible conductive patterns on plastic films in an economic and reproducible way. This satisfies the design goals of device makers in markets that require very high optical clarity and flexible, substrates, and so provides the touch screen market with a highly innovative technical alternative.”
See Heraeus at booth: I 403
For additional information, please contact:
Sales Manager – Hong Kong, Taiwan and S.E. Asia
Conductive Polymers Division
18 Sung on Street,
Hung hom, Kowloon,
Taiwan Mobile + 886 920-124818
Heraeus, the precious metals and technology group headquartered in Hanau, Germany, is a global, private company with more than 160 years of tradition. Our fields of competence include precious metals, materials, and technologies, sensors, biomaterials, and medical products, as well as dental products, quartz glass, and specialty light sources. With product revenues of EUR4.8 billion and precious metal trading revenues of EUR21.3 billion, as well as more than 13,300 employees in over 120 subsidiaries worldwide, Heraeus holds a leading position in its global markets.
Heraeus Precious Metals GmbH & Co. KG
+49 214 30 26718